Display Groups: Add "available time" option just like it is available in categories, subcategories and items.

Kitchen Printers: Printer configuration needs Node/Role Restriction the same way it has "Enable Service Type Restriction"

Kitchen Printers: LingaROS should implement the concept of PRINTER GROUPS

Discounts Add available time option just like it is available in categories subcategories and items

Product/Items: Backoffice needs the option NOT TO APPLY ONE OR ALL DISCOUNTS to a specefic item